Home / 102,148.41-140,962.37-56,826.57

Finding the Fourth Proportional to 102,148.41, 140,962.37 and 56,826.57

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Solution

The fourth proportional to 102,148.41, 140,962.37 and 56,826.57 is: 78,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,148.41 : 140,962.37 = 56,826.57 : x
  2. Step 2: Convert to fraction form
    102,148.41/140,962.37 = 56,826.57/x
  3. Step 3: Cross multiply
    102,148.41x = 140,962.37 × 56,826.57
  4. Step 4: Simplify right side
    102,148.41x = 8,010,407,702.04
  5. Step 5: Solve for x
    x = 8,010,407,702.04/102,148.41
  6. Step 6: Final answer
    x = 78,419.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.